No, sorry, Arcangiolo or Arcangelo is not an older version, but simply a longer one, and is different from Angiolo/Angelo.
Infact angels and archangels are not the same thing!
However today in Italy we usually use Angelo as a name.

Thanks again. I have a question about surnames that are very similar. My father's surname in Italy is Agnoloni from Tuscany region. There is also a surname Angeloni from this same region. Would these names represent the same family in ancient times? I ask this because my mother's surname is Pinney. Brothers sometimes changed the spelling, that is one would be Pinney another Pinne. Was there such a practice in Italy? Patricia

Hi, I attempted to e-mail your at your business address yesterday and it was returned no such address. The address I used was incipitss@gmail.it. Please send me the correct e-mail or another address so I can submit for an estimate research in the Firenze area. Thanks patricia Angeli